Style 940 is a high-tensile, compressed NBR/aramid reinforced fiber sheet. 940 is a great general-purpose material that offers extras such as suitability for use as extremely large gaskets and pads, small, thin, intricate gaskets, or dielectric materials.
Because of the high tensile strength and flexibility, 940 can be cut to exact dimensions without causing ragged edges or undue stress or wear on metal edge dies and gasket cutting equipment. This flexibility also enables the gasket to be cut into large or small intricate gasket without concern for breakage during fabrication or installation.
Electrical Resistance: 150,000 megohms at 1/16″ thick and 300,000 megohms at 1/8″ thick.
Red in color and manufactured using NBR/aramid fiber.
High Tensile Strength High Dielectric Strength
Because of the high tensile strength and flexibility 940 can be cut to exact dimensions without causing ragged edges or undue stress or wear on metal edge dies and gasket cutting equipment.
|Operating Limits** & Specifications|
|Max Pressure Rating (psi).||1000|
|Max Temp. Limit (°F)||600|
|Max Contin. Temp. Limit (°F)||400|
|Max P x T||350,000|
|y value (psi)||3600|
|ASTM F36 Compressibility (%)||7 – 17|
|ASTM F36 Recovery (% min)||40|
|ASTM F37 Sealability (ml/min) Sg = 1000 psi = 30||0.04|
|BS 7531 Gas Leakage (ml/min)||<1.0|
|ASTM F38 Creep Relaxation (%)||21|
|BS 7531 Residual Stress (mpa)||17|
|ASTM F146 Fuel B @ 70 – 85 °F Thickness Increase (%)||10 – 25|
|IRM 903 @ 300 °F Thickness Increase (%)||15 – 35|
|ASTM Fuel B @ 70 – 85 °F Weight Increase (%)||20 max.|
|ASTM F152 Average Tensile (psi)||2300|
|ASTM D149 dielectric strength||20 Kv|
Off – Red
Note: ASTM properties based on 1/16″ sheet thickness except ASTM F38, which is based on 1/32″ sheet thickness. This is a general guide only and should not be the sole means of accepting or rejecting this material. The data listed here falls within the normal range of product properties but should not be used to establish specification limits nor used alone as the basis of design.
Designed to withstand exposure to hot or cold water, air and some mild acids. 940 sheet gasket is well suited for general industrial applications and specific service in the chemical process, pulp & paper and power generation industries.
For a full description of Leader Global Technologies Liabilities and Warranties, please contact our Customer Service Department at the number provided and a copy can be mailed or faxed.